Sure I'd be glad to elaborate. Why should we make any personal details about our lives public information if it doesn't need to be? Do you go around announcing

Sure I'd be glad to elaborate. Why should we make any personal details about our lives public information if it doesn't need to be? Do you go around announcing all the things that you do in your life that are seemingly harmless? Sometimes revealing information to the public that one would think is harmless can end up doing a lot of harm, both to you and others. Privacy matters, a lot. A self-signed certificate used for HTTPS still protects the client/server from snooping by a unaffiliated party, even if it doesn't protect from a MITM intercepting and responding to the request in the case where the client hasn't already added this self-signed certificate to their trusted CA store.